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4 Sheets-Sheet 1.

(No Model.)

' H. F. E. GERIKE'.

PENDULUM' SCALE.

Patented Nov. 7, 1882.

N4 PETERS mmgm w. Wauhingiou. n a

(No Model.) 4 Sheets-Sheet 2.

H. F. E. GERIKB. 'PBNDULUM SCALE.

(No Model.) 4 Sheets-Shasta.

H. I. E. GERIKE."

PENDULUM SCALE.

No. 267,073. Patented Nov. 7, 1882.

(No Model.) 4 Sheets-Sheet 4.

H. F. E. GERIKB.

PENDULUM SCALE. H No. 267,073, Patented Nov, 7, 1882..

N. PcTERs, mlu-Lnm n hqr. Wllhinglqn. 0. C.

UNITED STATES PATENT OFFICE.

HUGO F. F. GERIKE, OF BERLIN, GERUANY.

PENDULUM-SCALE.

SPECIFICATION forming part of Letters Patent No. 267,073, dated November7, 1882.

Application filed August 2, 1882. (No model.)

To all whom it may concern:

Be it known that I, HUGO F. E. GERIKE, of Berlin, Prussia, in the Empireof Germany, have invented certain new and useful Improvements in Scales,of which the following is a specification.

This invention has reference to improvements in scales which work with avariable balance-weight, and in which a double dial can be made use of,so that the weighing of larger and smaller quantities may be accuratelydetermined.

The invention consists of two pairs of fulcrumed elbow-levers whichcarry, by aconnecting-bridge at their upper part, the scoop, while thelower part carries on a connecting weighted plate a weight, that can beraised therefrom by suitable mechanism, according as the scale is usedfor weighing larger or smaller quantities. Vhen the balance-weight issupported in raised position it is retained in steady position bysuitable mechanism, as will be more fully described hereinafter.

In the accompanying drawings, Figure 1 represents a side elevation of myimproved scales. Fig. 2 is a vertical longitudinal section on line A BFig. 3. Fig. 3 is a plan view with the top plate removed. Fig. at is avertical transverse section on line O D Fig. 3. Fig. 5 is a detail viewof the counterweight and the mechanism for lifting and retaining it inraised position. Fig. 6 is an end view of the balance-weight, and Fi 7 adetail plan of the same.-

Similar letters of reference indicate corre sponding parts.

My improved scales are inclosed in a metallic casing or box, A, which isclosed by a top plate, F, screwed or otherwise fastened thereto. Theside walls of the casing A support the transverse shafts b I), theconically-tapering ends of which turn in conically-recessed bearings aa; or they may be supported on knifeedges, or in any other approvedmanner. Each shaft 1) b carries two elbow-levers, c c and c c, which arekeyed to the shafts at theirangles in such a manner that the longer armsextend downward, while the shorter arms extend backward from the shafts.The upperand lower ends of the elbow-levers c c and c c are providedwith conically-recessed bearings d d and d d, which serve to supporttransverse shafts m m m m which shafts hwe conically-tapering ends.These shafts may, however, also be supported on knife-edge supports. Theupper transverse connecting-shafts, m m are connected by a forkedbridge, a, the ends of which are fitted loosely to the shafts m m Thisbridge carries a vertical pin, J, that extends through an opening in thetop plate, F, said opening serving to receive the bottom socket, B, ofthe scoop B.

To the lower transverse shafts, m m, is applied a weighted plate, 0,which turns loosely on said shafts, and which forms the balanceweightfor the scoop B when the scales are used for weighing lighter articles.lVhen larger quantities have to be weighed on the scale abalance-weight, 1), (shown in Figs. 2, 3, at, 5, and 6,) of peculiarshape is used, which is readily raised or lowered by suitable mechanism, so as to be either placed in position on the weighted plate 0 orraised above the same, as required. This weight D is provided at itsmiddle portion with an upwardly-extending hook-shaped portion, and infront of the same and at the rear end with transverse recesses. intowhich the arms of the elbow-levers c c c c and their transverse shafts mm swing when the weight is raised, so that it cannot interfere with themotion of the weighted plate 0.

The mechanism for raising or lowering the weight D consists of atransverse shaft, 9, which is provided with an exterior crankhandle, 1,and inside of the casing A with a hook-shaped arm, 4", that extendstransversely across the full width of an upwardly-extending hook, s, ofthe weight D, so thatin turningthe shaft 1) the hook r passes below thehook s, and raises thereby the weight by the turning of the shaft 2), asshown in dotted lines in Figs. 2 and 5. 111 the lowermost position ofthe weight D the same is supported directly by the weighted plate 0,upon which it is retained and prevented from shifting by means of abottom projection, t, which enters into a recess of corresponding shapeof the plate 0. lVhen the weight D is lifted into raised position bymeans of the hooks r and s it is entirely disconnected from the scalemechanism and protectedagainst oscillatory motion by means of a fixedarm, a, secured to the end wall of the casing A, which arm engages arecess, a, at the rear part of the weight D, as shown clearly in Figs. 2and 5.

The extent of swinging motion of the elbowreading off larger and smallerarticles on the levers 0 c and c 0 is transmitted tothepointer, whichindicates the weight in the following manner: To the outer end of theshorter pointer-shaft 1c is applied a double pointer of angular shape,and on the inner end of the same the pinion y, with which meshes a rack,2, that is pivoted at the outer end to one of the elbow-levers 0, at cBy the oscillating motion of the elbow-levers c c c c the rack z ismoved over the pinion, so that the double pointer at is moved along adouble dial at the outside of the casingA, as shown in Fig. 1, so as toindicate thereby the weight of the articles placed in the scoop B inpounds, kilograms, and other units of measure.

When the weight D is in its highest position and out of connection withthe operating mechanism the weighted plate 0 forms the balance-weight,so that weights of less than pounds, kilograms, or other equivalent canbe indicated on the second dial by the longer arm at" of the doublepointer 00, which admits the accurate reading off of the weights ofsmaller quantities. If, however, the'weight l) is resting on the plate0, the shorter arm .00 of the double pointer 00 indicates the weight onthe interior dial. The distance between the arms a" 00 of the doublepointer has to be such that when the weight 1) is on the plate 0 thefinger x will be at the zeropoint, and when said weight is hung up thefinger or will be at said point. For properly adjusting the doublepointer m to zero on the dials, a set-screw, E, is arranged at one endof the casing A, whereby said casing can be accurately adjusted intohorizontal position.

The scoopB is supported in curved radial arms of the socket B. Thesearms prevent the tilting of the scoop when the same is unequally actedupon by the article to be measured.

The top plate, F, of the casingA is provided with a handle, P, at eitherend, by which the scales can be readily taken hold of and moved fromplace to place.

if desired, the dials may be made in different colors'and the arms ofthe tapering pointer colored correspondingly, so that the dials andpointer-arms belonging to each other can be more readily recognized, andthereby the reading of the weight facilitated.

The advantages of my improved scales are that the actuating mechanismsare hung to six points, so as to work regularly, and by the use of theweighted plate alone, or in connection with the weight I), can be usedwith a variable balance-weight. The use of the variable balance-weightadmits the use of the scales for double dial, whereby the scope of thescales is considerably enlarged.

Having thus described my invention, Iclaim as new and desire to securebyLetters Patent 1. The combination of two or more pairs of laterallyconnected andfulcrumedelbow-levers, 0 0 0 c, with transverse shafts m mm m scoopcarrying bridge a, connecting the upper shafts, m m and aweighted balance-1')late, 0, connecting the lower shafts, at 412. of theelbowlevers, substantially as set forth.

2. The combination of the oscillating elbowlevers c c c 0, means forsupporting said levers, the transverse shafts m m the bridge connectingsaid shafts, the scoop B, supported on said bridge, the transverseshafts m m, connecting the lower ends of said levers, a weighted plate,0, supported on said shafts, a larger weight, 1), adapted to rest onsaid plate, and mecham ism whereby the same can be raised or lowered, soas to use the scales with a variable balanceweight, substantially as setforth.

3. The combination of the oscillating elbowlevers c c c 0, suitablesupports therefor, connecting-bridge a, carrying-scoop B, weighted plate0, balance-weight 1), having upwardlyektendlng hook s, transverse shaft12, having book i", and fixed arm a, entering into a recess, to, of thebalance-weight l), substantially as and for the purpose set forth.

4. The combination of the oscillating and weighted elbow-levers 0 c c 0,suitable supports for said levers, pivoted rack z, shaft 20, havinginterior pinionyy and an exterior double pointer, 50, and a double dialat the outside of the casing A, substantially as specified.

5. The combination of the oscillating elbowlevers 0 c c 0, suitablesupports therefor, the bridge a, balance-scoop B, weighted plate 0,balance-weight D, mechanism for raising and lowering the balance-weight,shaft to, mechanism for transmitting the oscillating motion of theelbow-levers to said shaft, and the double pointer 00, the arms of whichare arranged at such a distance from each other that the arms at" 00 areset to the zeropoints of their respective dials, according as the scalemechanism is used with or without the vertically-adjustablc weight,substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed myname in the presence of two subscribing witnesses.

HUGO FERDINAND Eilllh GERIKE.

Witnesses:

J OHANNES Bimw'rz, HUGO WlLor.

